Metro platform screen door fault detection method

Abstract

The invention discloses a metro platform screen door fault detection method. A second camera (5) is used for detecting an action of a relay of the metro platform screen door; the relay is used for controlling opening and closing of the metro platform screen door; a current sensor (4) is used for detecting an action signal of the relay; a voltage sensor (3) is used for detecting working voltage ofthe relay; a power supply (6) provides power; when a microcontroller (1) receives a train arrival signal through a first camera (2), the microcontroller analyzes relay excitation voltage received through the voltage sensor, relay excitation coil current received through the current sensor and the relay working condition inputted after capture by the second camera in real time, whether the metro platform screen door operates normally is judged according to the signal logic in the case of opening and closing of the metro platform screen door and voltage and current values, and the received dataand the judgment result are transmitted to an upper computer (7); and the upper computer displays the working state of the metro platform screen door on a screen and saves he information.

Description

technical field [0001] The invention relates to a detection method for a rail transit screen door, in particular to a fault detection method for a subway screen door. Background technique [0002] Safety relays are mostly used in industrial control, rail transit and other fields. The following uses the application of safety relays in rail transit screen doors as an example to illustrate. The rapid development of the city has constantly put forward new requirements for the passenger capacity of the subway, especially during the morning and evening peak hours, when a large number of passengers cause the time for passengers to get on and off the train to be prolonged. The opening and closing time of the screen door should also be adjusted according to the change of passenger flow, so the operation quality of the screen door system will directly affect the overall operation quality of the subway. With the linkage function of the train running signal and the screen door being pu...

AI Technical Summary

Problems solved by technology

For example: the train door and the screen door switch are not linked, or the screen door is opened and closed unexpectedly, the door is opened staggered, and the door is opened again unexpectedly, resulting in multiple minor injuries and other accidents

At present, the research on real-time data acquisition and intelligent fault alarm in the complex state of the screen door control system is still immature, there are few types of monitoring devices, they are susceptible to environmental interference, the detection accuracy is not high enough, and the real-time performance is poor

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